GB1481636A - Isomerising alkylaromatic hydrocarbons - Google Patents

Isomerising alkylaromatic hydrocarbons

Info

Publication number
GB1481636A
GB1481636A GB14793/75A GB1479375A GB1481636A GB 1481636 A GB1481636 A GB 1481636A GB 14793/75 A GB14793/75 A GB 14793/75A GB 1479375 A GB1479375 A GB 1479375A GB 1481636 A GB1481636 A GB 1481636A
Authority
GB
United Kingdom
Prior art keywords
alumina
alkylaromatic hydrocarbons
catalyst
per cent
isomerising
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB14793/75A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from GB667471A external-priority patent/GB1386801A/en
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB14793/75A priority Critical patent/GB1481636A/en
Priority to US05/671,545 priority patent/US4094919A/en
Priority to BE165863A priority patent/BE840399R/en
Priority to NL7603636A priority patent/NL7603636A/en
Priority to IT22058/76A priority patent/IT1058375B/en
Priority to DE19762615386 priority patent/DE2615386A1/en
Priority to FR7610518A priority patent/FR2332249A2/en
Priority to JP51040824A priority patent/JPS51128922A/en
Publication of GB1481636A publication Critical patent/GB1481636A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J21/00Catalysts comprising the elements, oxides, or hydroxides of magnesium, boron, aluminium, carbon, silicon, titanium, zirconium, or hafnium
    • B01J21/12Silica and alumina
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C5/00Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms
    • C07C5/22Preparation of hydrocarbons from hydrocarbons containing the same number of carbon atoms by isomerisation
    • C07C5/27Rearrangement of carbon atoms in the hydrocarbon skeleton
    • C07C5/2729Changing the branching point of an open chain or the point of substitution on a ring
    • C07C5/2732Catalytic processes
    • C07C5/2735Catalytic processes with metal oxides
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/52Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

1481636 Isomerizing alkylaromatic hydrocarbons IMPERIAL CHEMICAL INDUSTRIES Ltd 24 March 1976 [10 April 1975] 14793/75 Addition to 1386801 Heading C5E Alkylaromatic hydrocarbons are isomerized in the presence of a silica/alumina catalyst of which the alumina content has been reduced by at least 1% of the total alumina originally present, the catalyst comprising before such alumina-reducing treatment 2-40 wt. per cent alumina and after treatment at least 1% and less than 6% by wt. alumina. Isomerization conditions are 200-600‹ C., 0À5-50 atmospheres pressure and the presence of 100-10,000 p.p.m. steam. Examples describe the isomerization of xylenes, which may be carried out in the presence of 1-20 wt. per cent of octahydroanthracene, tetralin, decalin, cyclohexane, cyclooctane, cyclohexylcyclohexane or the alkyl derivatives of these compounds.
GB14793/75A 1971-03-12 1975-04-10 Isomerising alkylaromatic hydrocarbons Expired GB1481636A (en)

Priority Applications (8)

Application Number Priority Date Filing Date Title
GB14793/75A GB1481636A (en) 1971-03-12 1975-04-10 Isomerising alkylaromatic hydrocarbons
US05/671,545 US4094919A (en) 1975-04-10 1976-03-29 Hydrocarbon conversion processes and catalysts
BE165863A BE840399R (en) 1971-03-12 1976-04-05 METHODS AND CATALYSTS FOR THE CONVERSION OF HYDROCARBONS
NL7603636A NL7603636A (en) 1971-03-12 1976-04-07 PROCEDURE FOR ISOMERIZING AN ALKYL-AROMATIC HYDROCARBON, AND PROCEDURE FOR PREPARING A CATALYST THAT CAN BE USED THEREIN, AND THE CATALYST OBTAINED BY THIS PROCESS.
IT22058/76A IT1058375B (en) 1975-04-10 1976-04-07 CONVERION PROCESS OF HYDROCARBONS AND RELATED CATALYSTS
DE19762615386 DE2615386A1 (en) 1971-03-12 1976-04-08 METHOD FOR CATALYTIC ISOMERIZATION OF ALKYLAROMATIC HYDROCARBONS AND CATALYST FOR THIS PROCESS
FR7610518A FR2332249A2 (en) 1971-03-12 1976-04-09 Isomerisation of alkylaromatic hydrocarbons - using silica-alumina catalysts with reduced alumina content
JP51040824A JPS51128922A (en) 1975-04-10 1976-04-10 Isomerization of alkylaromatic hydrocarbons

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
GB667471A GB1386801A (en) 1971-03-12 1971-03-12 Hydrocarbon conversion processes and catalysts
GB1273871 1971-05-03
GB14793/75A GB1481636A (en) 1971-03-12 1975-04-10 Isomerising alkylaromatic hydrocarbons

Publications (1)

Publication Number Publication Date
GB1481636A true GB1481636A (en) 1977-08-03

Family

ID=27254876

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14793/75A Expired GB1481636A (en) 1971-03-12 1975-04-10 Isomerising alkylaromatic hydrocarbons

Country Status (2)

Country Link
BE (1) BE840399R (en)
GB (1) GB1481636A (en)

Also Published As

Publication number Publication date
BE840399R (en) 1976-10-05

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee